| Abbreviation | Definition |
|---|---|
| LISP | Lots Of Irritating Single Parentheses |
| LITA | Lost In The Audience |
| LLBB | Laboratory of lymphatic biology and bioENGINEERING |
| LLBG | Least Likely under the Background Model |
| LLCN | Laboratory for Language and Cognitive Neuroscience |
| LLCO | Lincoln Laboratory Community Outreach |
| LLD | Lipid-Lowering Drug |
| LLE | Laboratory for Laser Energetics |
| LLEB | Laboratory of Luminescence and Biomolecular Spectroscopy |
| LLI | Low Latent Inhabition |
| LLL | Leave Lower Left |
| LLM | Lipid-Laden Macrophage |
| LLNL | Lawrence Livermore National Laboratory |
| LLS | Laboratory Leadership Service |
| LLS | Large Laboratory System |
| LLSC | Lincoln Laboratory Supercomputing Center |
| LLSD | Laboratory for Language and Speech Diversions |
| LLSE | Laboratory for Living Systems Engineering |
| LMAM | Laboratory of Movement Analysis and Measurement |
| LMAP | Laboratory for Macromolecular Analysis and Proteomics |